Electric lamp with burner of the second class.



No. 648,5l6. Patented May I, I900.

.K. OCHS.

ELECTRIC LAMP WITH BURNER OF THE SECOND CLASS.

(Application filed Tune 29, 1899.)

(No Mqdal.)

INVENTOR M W% @SSES ATTORN EYS m: NORRIS versus ca, mowumo WASHINGTON. u. c.

Nrrnn STAT S PATENT 11 nch,

KARL OCI-IS, OF BERLIN, GERMANY.

ELECTRIC LAMP WITH BURNER OF THE SECOND CLASS.

SPECIFICATION forming part of Letters Patent No. 648,516, dated May 1 1900.

Application filed June 29, 1899. Serial No. 722,225. 1% model.)

To all whom it may concern:

Be it known that I, KARL OOHs, residing at Berlin, Germany, have invented certain new and useful Improvements in Electric Lamps with Burners of the Second Class, of which the following'is a specification.

The present invention relates to electric lamps with burners of the second class, and has for its object to produce a lamp of the character described in a very efficient merchantable form. r

The invention also relates to the lamps of this general type, all as will be hereinafter pointed out in the claims.

According to my present invention I produce a lamp with glower or illuminating bodies of the second class in which the illuminating-body is capable of being incited by a flame independent of the glower-let us say by means of a match or a kerosenerlamp.

Forms of lamps embodying my invention are illustrated in the accompanying drawings but it will be understood that I do not mean to thereby limit myself to the construction shown, as theinvention may be embodied in other forms and types of lamp.

I11 the drawings, Figure 1 is a central vertical section through a lamp embodying my invention, showing the same as constructed for use on the ordinary Edison sockets and circuits. Fig. 2 is a side view of the base with the terminals. Fig. 3 is a side view of the removable burner. Fig. 4 is a sectional side view of the bulb or globe detached from the base. Figs. 5 and 6 are detail sectional views of a lamp embodying my invention constructed on the Swan system. Fig. 7 is a side view of the base of the lamp shown in Figs. 5 and 6 and Fig. 8 is a detail side view of a lamp, partly in section, in which the parts are so combined and located that the lamp may be used in an inclined position.

The lamp illustrated in the drawings consists of two essential parts-to wit, the base, with terminals carried thereby, supporting the illuminating-body, and the bulb or globe removably secured to the base.

I will first describe the lamp shown in Figs. 1, 2, 3, and 4, it being understood that this lamp is a mere embodiment of my invention. In these figures, a is a plug or base, of insulating material, carrying a contact-rim g I) of a insulating-socket a. parts will be readily understood.

screw form and a contact-piece 0. (Z d are leading-in conductors terminating in resilient sockets connected to the ring I) and contact a, respectively. These conductors-are preferably slotted at their lower ends to receive plugs ,g, which support the fragile rigid conducting-body or burner e, a bridge-piece of insulating material, being preferably em ployed to space the leading-in conductors apart and to support the parts. It is a suit able bulb or globe provided with apertures 2'70 for providing a circulation and for permitting the insertion through the aperture 2' of a burning match or taper or lamp-flame to effect the initial heating of the illuminating body or burner e, which, as is well known, becomes a conductor upon being heated and thereupon becomes incandescent by the passage of the current. A suitable ring! is cemented or otherwise secured to the neck of the bulb h and is adapted to fit over the screw contact-ring b of the lamp to securely hold the parts of the lamp together in position. Figs. 5, 6, and 7 show a modified form of lamp wherein the base a is apertured laterally for the passage of a plug or rod 0, this form of lamp being adapted to be secured to the socket by a bayonet-joint, as in the Brush- Swan system. m is the ring of the lamp, which is cemented or otherwise secured to the bulb h, the said ring being provided with a bayonet-slot p for the reception of the projecting end of the rod 0 and of the nut s, which nut screwing upon the end 0 of the rod brings the shoulder on the rod 0 into firm contact with the abutment a, formed in the The operation of these The lamp shown in Fig. 8 is similar in all respects to the lamp shown in Figs. 1 to 4, with the exception that the illuminating body or burner e is permanently secured to the leading-in wires 01, as may be done without departing from the spirit of my invention.

In order that the air-current may act properly, it is desirable that the aperture in the lamp-globe be immediately above the aperture t'. Now as the socket is frequently placed rigidly in an inclined position and is shown as receiving the lamp by a rotary motion the lamp must occupy a position which is substantially invariable. Consequently the contact should be provided with a spring 4 of the lamp is provided for, irrespective of whether the lamp be entirely screwed into the socket.

It will be understood that the details of any of the lamps may be varied without departing from the spirit of my invention and that other forms and constructions can be used in lieu of the forms and constructions shown.

Having described my invention, what I claim, and desire to secure by Letters Patent,

1. In an incandescent lamp, the combination of a base adapted to engage a socket, split end tubes or socketsdcarried by the said base, and an illuminating structure adapted to be supported in said sockets, comprising the glower e, the insulating cross-bar f and the plugs g.

2. In an electric-lamp structure, the combination of alamp provided with the laterallyplaced apertures '5 k and the spring rt electrically connected to the lamp-contact, whereby the lamp may be used in an inclined position with the apertures located one above-the other.

3. The co mbination of a lamp-base provided with suitable contacts for engaging a socket,

' leading-in conductors supported by the said lamp-base and in electrical connection with the said contacts, an illuminating-body of the second class supported by and removably secured to the said leading-in conductors and an apertured globe enveloping the illuminating device and removably engaged with the lamp-base. I

4. The combination of, a lamp-base provided with suitable contacts for engaging a socket; leading-in conductors supported by the said lamp base and in electrical connection with the said contacts, an illuminating-body of the second class supported by and removably secured to the said leading-in conductors and an apertured globe enveloping the illuminating device and provided with a ring adapted to be mechanically and removably engaged with the base.

5. The combination of a lamp-base provided withsuitable contacts for engaging a socket,

- leading-in conductors supported by the said lamp-base and in electrical connection with the said contacts, an illuminating-body of the second class supported by and removably secured to the said leading-in conductors and an apertured globe enveloping the illuminating device and a contact-ringlcarried by the said globe and screw-threaded to elfect the engagement of the base and the globe.

6. In a glow-light, the combination of a glower, a base supporting the glower having a plurality of electrical contacts, and adapted to engage a lamp-socket removably, an apertured globe enveloping the glower and removable therefrom without disturbing the glower and a metallic connection removably securing the globe tothe base and in electrical connec- 'tion with one of the contacts of the base.

KARL OOHS.

Witnesses HENRY HASPER, WOLDEMAR HAUPT. 

